the sources that i talked to on both sides of the aisle say this is going to be an aggressive forward leading joe biden, somebody who's going to want to really frame a negative message against romney and ryan, and pick up where the president didn't do that well last week, or didn't mention at all, thinking of issues like the auto ballot, social security, the ryan proposal on that. the medicare issue, the 47% comment that romney made and people were stunned that obama didn't mention that last week. and, of course, romney's income taxes and how he made his money at bain consulting. those are all issues i think we will hear from joe biden on. and it is very different than what biden's pass was four years ago, steve, as you recall facing sarah palin. the biggest challenge been for biden was don't patronize sarah palin, don't bully sarah palin certainly, try to a quarter to a certain degree of respect. i think this is a different time, and paul ryan is a different opponent. >> there's been what some are calling the rebuttal as both congressman paul ryan, republican vice president to nomina